Crude-oil engine.



J. M. PRIMM.

CRUDE OIL ENGINE. APPLIOATION FILED MA1L15, 1909.

Patented A r. 26, 1910.

- INVENTOR. John M.P'r'pmm.

A TTORNEY.

UNITED sTA-rEs PA ENT OFFICE.

JoHNM. PRIMM, OF VANBUREN, INDIANA, ASSIGNOR. TO THE PRIMM OIL ENGINECOMPANY, OF V'ANBUREN, INDIANA, A CORPORATION OF INDIANA.

CRUDE-OIL ENGINE.

Specification of Letters Patent.

Patented Apr. 26, 191 0.

To all whom it may concern:

Be it known that I, JOHN M. PRIMM, of Vanburen, county of Grant, andState of Indiana, have invented a certain new and useful Crude-OilEngine; and I do hereby declare that the following is a full, clear, andexact description thereof, reference being had to the accompanyingdrawings, in which like numerals refer to like parts.

The object of this invention is to improve the construction ofcombustion engines, particularly for the purpose of enabling them tooperate with crude oil, although this invention is not necessarilylimited to crude oil engines.

The full nature of the invention will be understood from theaccompanying drawings and the following description and claims:

In the drawings Figure 1 is a central vertical longitudinal section ofan end portion of a cylinder and piston. Fig. 2 is a transverse sectionon the line 22 of Fig. 1.

In detail there is shown herein a cylinder 10 and water jacket 11-,piston 12 and piston rod 13. An exhaust port 14 is located 1n thecylinder. At the forward end of the piston an ignition plate 20 issecured by arms 21 projecting from the end of the piston and widened forthe whole width of the plate 20 so as to hold said plate away from theend of the piston. The purpose of this construction is to cause saidplate 20 to be maintained at a much higher degree of heat than thepiston, but little heat will be conducted from. the plate to the piston.This will cause said ignition plate 20, after the engine has beenarrested, to be maintained by the explosions at a sufliciently highdegree of temperature to ignite the gas.

C06 eratmg with the construction describe I provide a fuel nozzle 23 inthe center of the end of the cylinder and opposite and in alinement withthe ignition p ate 20,

and said fuel nozzle is connected by any suitable means to a source offuel under pressure, so that the fuel will be sprayed and directedagainst the plate 20, especially when said plate is reasonably near thefuel nozzle, thereby causing a gas to be generated by fuel being sprayedagainst plate 20 with sufficient force to cause it to become a vapor,and while in this state is commingled with the air and moisture alreadyunder compression, forming a gas which is ignited by plate 20. It willtherefore be seen that the gas is generated and exploded at practicallythe same moment.

An ignition tube 25 is provided in connection with the cylinder forigniting the fuel in the cylinder for starting the same. This may bedone by a blow-torch or in any other suitable way. After one or twoexplosions the plate 20 will become red hot and thereafter the fuel willbe ignited.

This invention has been particularly desiflgned for use in crude oilengines and is e ective when crude oil is s rayed through the nozzle 23into the cylinder and against the late 20. But I do not wish theinvention limited to the use of crude oil, as it will operate with otherfuel.

. What I claim as my invention and desire to secure by Letters Patentis:

Thecombination of the piston of a combustion engine providedwith a pairof forwardly projecting arms, and an ignition plate secured to andbetween said arms and apart from the body of the piston, said arms beingwidened for substantially the full .width of said plate.

In witness whereof, I have hereunto affixed'my signature in the presenceof the witnesses herein named.

. JOHN M. PRIMM.

Witnesses:

Isaac C. MILLS, ELIsHAR. Ronnn'rs.

